A scuba diver wants to dive more than 2 1/2 times her previous deepest dive. That means she has to dive at least 77 feet below t
2 answers:
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E
Given a quadratic in standard form : y = ax² + bx + c ( a ≠ 0 ), then
The x-coordinate of the vertex is
= -
y = 10x² + 5x - 7 is in standard form
with a = 10, b = 5 and c = - 7, hence
= -
= -
Substitute this value into the equation for y-coordinate
y = 10 (- )² + 5 (-
) - 7
= -
- 7
= -
-
= -
vertex = (- 0.25, - 7.625 ) → E
Answer:
Hi! The answer to your question is D.
Step-by-step explanation:
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